Kaia Gerber made a rare remark about brother Presley Gerber‘s battle with addiction. Presley, 27, and Kaia grew up in the limelight with supermodel mom Cindy Crawford and dad Rande Gerber. Related: Cindy Crawford Shows Love to Son Presley Gerber After Mental Health Video Cindy Crawford is sending a message of support after son Presley Gerber got candid about his mental health. (Buprenorphine is meant to treat opioid use disorder and pain, per the Substance Abuse and Mental Health Services Administration.) Related: Kaia Gerber Steps Out With Parents Cindy Crawford and Randy Gerber It was a family affair for Kaia Gerber and her famous parents as they stepped out for the opening night of Broadway production, Good Night, and Good Luck.